Wednesday, May 16, 2012

How to make an "Erupting Volcano"

I have been wanting to try this experiment with Junebug since we started our Letter of the Week activities in the fall.  But, I wanted to wait until we got to V.  At the time it seemed so far away.  But, here we are, already in the middle of V week.

I have to admit it was super cool and both girls loved it.  We only had enough vinegar to do the experiment twice.

Supplies needed:
plastic cup
large bowl
baking soda - 1/4 cup
red sugar sprinkles(what we used) or red food coloring - (optional-just to resemble lava)
vinegar - 1/2 cup
dish washing soup - I added a squirt to the vinegar.  I read it helps push the combination upward.

*The first time we tried this experiment I used 1/4 cup of baking soda & 1/4 cup of vinegar with no dish soap.  It didn't work.  Well, it sort of worked but only half way up the cup.  That is when we tried it again with 1/2 cup of vinegar and added the squirt of dish soap.* 

Step 1 - Add the red sprinkles and 1/4 cup of baking soda to the cup and mix them together.

Step 2 - Pour the 1/2 cup of vinegar (with squirt of dish soap) into the baking soda mixture and watch!

As she says oooooo! 

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